Question 381 · 469 in bank
Universal Containers has a new custom object for Invoices that includes an Invoice Number field. Before the Invoice object can be used, invoices will be migrated from an external system maintaining their current Invoice Number. After the migration, each new Invoice created in Salesforce must have a unique Invoice Number. How should the app builder configure the Invoice Number field?
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Answer: A
Explanation
Answer is A https://developer.salesforce.com/forums/?id=906F0000000DCbOIAW 'If you convert an auto-number field into a text field, the data in that field remains unchanged. Also, you can safely convert a text custom field into an auto-number field without losing your data. Converting an auto-number field into any other data type results in data loss. Auto-number fields can contain a maximum of 30 characters. Before converting a text custom field into an auto-number field, change any records that contain more than 30 characters in that field.'
Source: Adapted from community discussion — sfreesway